Forest Service, U. S. Dept. of Agriculture Mechanical Pulp. 



PLATE XI. 



,..,, .^m^ 



i '&''.( 



m 



K*\ s 



FIG. 1. HEMLOCK GROUND WOOD. (RUN No. 41.) 



.H- 



^ ^*""%|^l|f|$ 



tec it 





FIG. 2. HEMLOCK GROUND WOOD. (COMMERCIAL RUN No. 14-1.) 



